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Regenerative Furnace  

High Temperature Air Combustion Technology(HTAC) have dual effects on energy saving and environment protection. Comparing with the conventional combustion technology, HTC will save approximately 20-50% fuels, decrease  the oxidation and lgnition loss by 20%,reduce NOx emissions by 40% and bring up the production output > 20%.As a key component of HTAC , honeycomb heat storage substrates have the following features: large unit heat transfer surface, high heat conductivity, low pressure drop, low heat penetration depth and high thermal efficiency. Moreover, channel shapes are available in: square channel, round channel and hexagonal channel. Face shapes are also available in: plane face, inclined face, single groove channel face, double groove channel face. The technicians from our company innovatively manufacture the honeycomb heat storage substrate, baffle brick and ball by synthesizing chromium corundum and high purity mullite using >2000 ℃ high temperature electro-cast. We are the first company apply this manufacturing method in China . The synthetic material have the following features: high temperature resistance, high softening point, excellent de-slagging ability, outstanding thermal stability, fast haet conductivity, high density and high heat capacity . By applying the new synthetic material, our products dramatically lower down the plugging, fusing, slagging, cracking, powdering and spalling phenomenon. The service life of our products is equivalent to international famous brand. Furthermore ,when the temperature reach 600 ℃, the catalyst on the substrates can boost a catalytic combustion on the compound of CO, HC from the smoke. This method is wide spreading to increase the surplus heat recovery and minimize the waste gas emissions.

  1. Specification

L*W*H(mm)

Quantity of channels

Channel width

Wall thickness

Side wall thickness

Specific surface area

Void%

Section shape

200*100*100

20*9

Hole ¢8.5
Round channel

2.3

2.5

280

51


150*100*100

36*24

Square hole ¢3*3
Square channel

1.1

1.2

734

52


150*100*100

35*20

Hexagonal holes¢4
Hexagon channel

1.0

1.2

687

65


150*100*100

10*6

Hexagonal holes¢12
Hexagon channel

4.0

4.0

210

50


150*100*100

35*20

Hexagonal holes¢3.5
Hexagon channel

1.5

1.5

570

50


150*100*100

17*13

Hole ¢7.5
Round channel

1.2

1.3

366

57


150*100*100

33*19

Hole ¢4
Round channel

1.0

1.3

568

53


150*100*100

15*9

Hole ¢8.5
Round channel

2.3

2.5

280

51


150*100*100

38*22

Hexagonal holes¢3.6
Hexagon channel

0.9

1.2

696

63


150*100*100

42*28

Square hole ¢2.6*2.6
Square channel

1.0

1.1

815

53


100*100*100

7*6

Hexagonal holes¢12
Hexagon channel

4.0

4.0

224

52


100*100*100

31*31

Square hole ¢2.65*2.65
Square channel

0.55

0.7

1065

67


100*100*100

24*24

Square hole ¢3*3
Square channel

1.1

1.2

741

52


100*100*100

23*20

Hexagonal holes¢4
Hexagon channel

1.0

1.2

608

84


100*100*100

10*9

Hole ¢8.5
Round channel

2.3

2.5

280

51






  1. Physical performance

performance

Material


Cordierite


Mullite-cordierite synthesis

Corundum mullite

Corundum mullite

Chromium
corundum mullite

Zirconium mullite

Capacity(g/cm3)

0.6-0.8

0.7-0.9

0.8-1.0

0.9-1.1

0.9-1.15

0.9-1.15

Hot coeffcient of expansion(20-1000 ℃)*10-6·0C-1

1.8-2.3

4-5

5-6

5-6.5

5-6.5

5-6

Specific heat capacity(J·(g·K)-1

≥0.85

≥0.90

≥1.0

≥1.10

≥1.15

≥1.15

Thermal conductivity (1000℃(w·(m·k)-1

≥1.0

≥1.10

≥1.20

≥1.20

≥1.30

≥1.30

Maximum temperature (℃)MAX service temperature

1250

1350

1450

1550

1550

1550

A-axis compressive strength /MPa Compression strength of axis A

≥20

≥22

≥22

≥25

≥30

≥30

B-axis compressive strength /MPa Compression strength of axis B

>8

>10

>10

>12

>15

>15


  1. Chemical composition

composition

Material

Cordierite

Mullite-cordierite synthesis

Corundum mullite

Corundum mullite

Chromium
corundum mullite

Zirconium mullite

SiO2

42-52

40-50

35-38

25-30

23-28

23-28

AL2O3

36-40

45-50

60-65

65-70

65-70

65-70

MgO

12-15

6-9

≤0.5

≤0.5

≤0.5

≤0.5

Fe2O3

<1.0

<1.0

<1.0

<1.0

<1.0

<1.0

K2O+Na2O+CaO

<1.2

<1.2

<1.2

<1.2

<1.2

<1.2

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